| 发明名称 |
Computer vision-based valve control system and method |
| 摘要 |
The computer vision-based valve control system and method includes a camera mounted on a pneumatic control valve in such a way that the camera periodically observes positioning of the valve stem. An image processor is applied to the output of the camera to determine percentage opening of the valve. The valve opening percentage of the image processor is fed to a PID controller that uses the valve opening percentage in its process control calculations. |
| 申请公布号 |
US8803956(B2) |
申请公布日期 |
2014.08.12 |
| 申请号 |
US201113332001 |
申请日期 |
2011.12.20 |
| 申请人 |
King Fahd University of Petroleum and Minerals |
发明人 |
Ferik Sami El;El-Shafei Mustafa;Shaqura Mohammad;Bouchrit Atef |
| 分类号 |
H04N7/18;H04N5/232;G08G1/017;G08G1/054;B64F1/18;G08G5/00 |
主分类号 |
H04N7/18 |
| 代理机构 |
|
代理人 |
Litman Richard C |
| 主权项 |
1. A computer implemented computer vision-based valve control method, comprising the steps of:
transmitting video frames from a camera positioned to make observations of a valve stem position; receiving the video frames for image processing of the camera observations; image processing the video frames to determine percentage opening of the valve based on the valve stem position; outputting the percentage opening to a process controller input; and sending a process controller signal control opening and closing the valve based on the percentage opening of the valve determined in the image processing step. |
| 地址 |
Dhahran SA |
